[Bro] New bro types when writing a plugin

[D.W.]

Hey there,

I'm writing an analyzer as a plugin and I would like to create some new 
bro data type (record type to be exact) to hand over some protocol data 
in a compact form as parameters to the event functions.

For now I have declared the new types in types.bif and defined them in 
init-bare.bro, but I don't think that this is the right way, because I 
have to manually modify the bro source files.

Is there a way to declare and define the new type inside the plugin 
source files, so that the types will be featured in bro after the plugin 
was installed?

Greetings,

Dane